No. Mirror defoggers are not rated to be installed in wet locations like a shower enclosure.

Can I trim the mirror defogger?

No. Mirror defoggers can't be trimmed and the proper size needs to be selected to fit on an open, unobstructed area on the back of the mirror.

Can I use multiple defoggers on the same mirror?

Yes, but please make sure not to overlap multiple heating elements over each other.

Can I wire it to the lighting circuit?

Yes. In fact, this is the most common way to operate a mirror defogger.

Can you attach it to the back of a medicine cabinet door?

No. Mirror defoggers are designed to be mounted and wired to a fixed, wall-mounted mirror.

How does a mirror defogger work?

An electric heating mat is attached to the back of the mirror, which transmits gentle warmth across a mirror’s surface to prevent moisture from condensing on the mirror's surface during a shower or bath.

How do I glue a mirror to the wall and still have a defogger on it?

If you're gluing a mirror to a wall, simply apply adhesive to the mirror backing, not covered with the mirror defogger.

How quickly can a mirror defogger defog a mirror?

The mirror defogger will begin to defog the mirror within 5 minutes of operation.